将方程组a1x+2b1y=3c1,a2x+2b2y=3c2变形,得
a1(x/3)+b1(2y/3)=c1
a2(x/3)+b2(2y/3)=c2
与已知方程组对比,得
x/3=1,x=3
2y/3=2 ,y=3
故方程组的解是
x=3,y=3